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A Study on Planning and Geometric Design of Underground Roads  

Kim, Nakseok (경기대학교 토목공학과)
Bae, Seongsik ((주)청석엔지니어링)
Publication Information
Journal of the Society of Disaster Information / v.7, no.1, 2011 , pp. 1-11 More about this Journal
Abstract
Plans of underground roads have been established, and the possibilities of underground road constructions have been growing in Korea. However, the study on characteristics of underground roads, the enactment of law, and the establishment of design criteria haven't been conducted so far, if any. Based on these backgrounds, the paper presents the basic direction on the construction method of underground roads. It also investigates the needs and characteristics of underground roads and reviews domestic and foreign examples. Major results by implementing the research are as follows: 1) when selecting the route of underground roads, the use of underground space, technical aspects, and traffic systems should be comprehensively considered; 2) the design speed of underground roads will be 10km/h above the speed limit to secure safety; 3) disaster prevention facilities should be planned to connect high traffic management system for coping with unexpected situations. Although this study has a limitation that hasn't reflected the driver's characteristics on new spaces such as underground roads, it has some significance that it suggests the major reviewing issues on the construction of underground roads, and presents the direction through the previous study.
Keywords
Underground Road; Design Speed; Speed Limit; Disaster Prevention Facility;
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